539539894 has 16 divisors (see below), whose sum is σ = 833859360. Its totient is φ = 261701440.

The previous prime is 539539873. The next prime is 539539909. The reversal of 539539894 is 498935935.

It is a happy number.

It is a super-2 number, since 2×539539894² = 582206594435062472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19162 + ... + 38029.

It is an arithmetic number, because the mean of its divisors is an integer number (52116210).

Almost surely, 2^539539894 is an apocalyptic number.

539539894 is a deficient number, since it is larger than the sum of its proper divisors (294319466).

539539894 is a wasteful number, since it uses less digits than its factorization.

539539894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57335.

The product of its digits is 5248800, while the sum is 55.

The square root of 539539894 is about 23227.9980626829. The cubic root of 539539894 is about 814.0939378094.

The spelling of 539539894 in words is "five hundred thirty-nine million, five hundred thirty-nine thousand, eight hundred ninety-four".